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प्रश्न
Why does this happen?
The fragrance of incense sticks lighted in one corner of a room spreads to the other corner.
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उत्तर
Incense sticks release scented vapours that carry their scent. Since vapors are gases, their molecules disperse across the space. There are no forces preventing the gas molecules from disintegrating since they move so quickly. As a result, when incense sticks are lit in one corner of the room, their scent permeates the other.
संबंधित प्रश्न
Write the properties of this substance.
Pen
Write the properties of this substance.
Ink
Write the properties of this substance.
Soap
What is it made from? Why?
A screwdriver
Short Answer Type Question:
Metals generally occur in solid state and are hard. Name a metal that exists in liquid state and a metal that is soft and can be cut with knife.
Long Answer Type Question:
Write an experiment to show that our palm is translucent.
Find the odd one out from the following:
Which type of the following materials is used for making the front glass (wind screen) of a car?
Which among the following materials would you identify as soft materials and why?
Ice, rubber band, leaf, eraser, pencil, pearl, a piece of wooden board, cooked rice, pulses and fresh chapati.
Arrange the jumbled words to arrive at the appropriate name of material and also write two uses of it.
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